Optimization of Process Parameters in Abrasive Jet Drilling Of Hastelloy Using Taguchi Method
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 11
Abstract
Machining of nickel base Hastelloys is considered as moderate to difficult. During machining, these alloys work harden rapidly, generate high heat during cutting, weld to the cutting tool surface and offer high resistance to metal removal because of their high shear strengths. Abrasive jet machining (AJM) is a nonconventional machining process which is effective in machining hard and brittle materials. Hence to overcome the difficulties in machining of hastelloy by conventional machining process, Abrasive jet machining is employed. During AJM, the influence of process parameters on machining characteristics were studied using Taguchi method and the results were compared using ANOVA technique. The process parameters chosen were air pressure, standoff distance (SOD) and nozzle diameter. AJM performance was measured in terms of MRR and Kerf. In the Taguchi analysis it is observed that the air pressure has largest effect and nozzle diameter has the smallest effect on the material removal rate whereas the Standoff distance (SOD) has large effect and nozzle diameter has the least effect on Kerf. Similar kinds of results were observed when analyzed by ANOVA.
Authors and Affiliations
Prerna Ramagiri, Rajasekhar Adula, D. V. Srikanth
Keywords
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